
Firmware Upgrade Process
77
HPM.1 Firmware Upgrade
The HPM.1 upgrade procedure is managed by a utility called the
upgrade agent
. The
ipmitool
utility is used as upgrade agent for upgrading the IPMC firmware.
The upgrade agent communicates with the IPMC firmware via serial interface or IPMB, and
uses the commands that are described in the
HPM.1 Specification
for upgrading the firmware.
Updated firmware is packed into a special image that has a format described in the
HPM.1
Specification
. That image is used by the upgrade agent to prepare and upgrade the IPMC
firmware. The HPM.1 upgrade procedure includes the following steps:
1.
Preparation step
. This step erases the region in the flash memory where a component will be
written.
2.
Component upload step
. This step is designed to upload the component image via IPMB or a serial
interface, and write it into the flash memory.
3.
Component activation step
. This step is designed to activate the previously upgraded component;
for the firmware component, this step can be deferred until a later time.
The IPMC firmware supports two upgradeable components: the firmware itself and the boot
loader. In case of an unsuccessful firmware upgrade it is possible to roll back to the old
firmware. This is not true for the boot loader.
Note: Extreme caution should be exercised when upgrading the boot loader. There is no
backup copy of the boot loader and if for any reason the boot loader upgrade procedure fails,
the firmware becomes non-functional after reboot and must be reprogrammed over JTAG.
Upgrade Utilities
The firmware upgrade procedure is performed using the upgrade agent utility, implementing the
HPM.1 Upgrade Protocol and capable of programming custom firmware images into the flash
memory of the IPMC over a serial interface or IPMB. Any HPM.1-compatible Upgrade Agent
can be used to upgrade the IPMC firmware. It is recommended to use the
ipmitool
utility for
these purposes. The
ipmitool
utility is available from PT. Contact PT Customer Support and
Services for contact information.
The firmware image is supplied to the
ipmitool
utility in a single file called an HPM.1 upgrade
image (for information about the format of HPM.1 upgrade images refer to the HPM.1
specification).
Содержание CPC5565
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Страница 14: ...Figures 14 Figure 7 1 Battery Socket Locations 106 Figure 7 2 CPC5565 Board Dimensions 107...
Страница 56: ...Chapter 3 Getting Started 56 Figure 3 16 PMC Card Installation Voltage Key Post...
Страница 84: ...Chapter 4 System Monitoring and Alarms 84...
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Страница 102: ...Chapter 6 Reset 102...
Страница 108: ...Chapter 7 Specifications 108...
Страница 110: ...Chapter 8 Thermal Considerations 110...
Страница 118: ...Chapter 10 Data Sheet Reference 118...